PBGC will pay retirement benefits for more than 1,500 current and future retirees of Metavation LLC, an auto parts supplier based in Southfield, Mich.

The agency is stepping in because the company's parent, Revstone Transportation LLC, is selling its ownership interest. The transaction will further compromise Metavation's underfunded pension plans, which will be unable to pay retirement benefits.

Formally known as Hillsdale Automotive LLC until 2008, Metavation sponsors two pension plans: the Hillsdale Salaried Pension Plan and the Hillsdale Hourly Pension Plan. Both plans will end as of March 1, 2013.

PBGC will pay all pension benefits earned by the company's retirees up to the legal limit of about $57,500 a year for a 65-year-old.

Until PBGC becomes trustee, the plan remains under Metavation's control. Plan participants will be notified by letter when the agency takes responsibility. At that time, retirees will continue to get benefits without interruption, and future retirees can apply for benefits when eligible.

Metavation makes powertrain and chassis components for the automotive industry. The company also provides other parts for engines, drivelines, and transmissions.

According to PBGC estimates based on information provided by Metavation, the plan is 50 percent funded with $47 million in assets to pay $93 million in benefits. The agency is expected to cover most of the $46 million shortfall.

Participants with questions about their pension benefits should contact the plan administrator. The agency won't be able to address concerns about benefits until it takes responsibility for the plan.